四川省农科院作物所水稻育种研究室于1975年用“IR_(24)”作母本,“原丰早”作父本,杂交育成了中籼迟熟水稻新品种“80—133”。全省区域试验表明:该品种产量高、适口性好、适应性较广、较抗稻瘟病。全生育期145天左右,株高95—105厘米,稃尖无色,有顶芒,谷粒淡黄色。苗期矮健,分蘖力中等,根系发达,生 Sichuan Academy of Agricultural Sciences crop rice breeding research institute in 1975 with “IR_ (24)” as the mother of the “original abundance morning” as the father of this hybrid rice bred new varieties of late maturity “80-133.” Regional tests show that: the varieties of high yield, good palatability, adaptability more broadly resistant to blast. The whole growth period of about 145 days, plant height 95-105 cm, tip sharp, colorless top, grain light yellow. Short seedling age, medium tillering ability, root system developed, raw